Replacing parts with lighter parts to save weight?

[imzjustplayin]

I was thinking, if I had a '96 honda civic, in order to save weight, would it be cost effective to replace things such as the Windows (except windshield), Hood, trunk and doors with lighter materials?

Carbon fibre is quite expensive, but fibreglass should be cheaper, also Fibre glass weighs less unless we're talking lb for lb strength. So I was thinking I could replace at least the hood and trunk (Bonnet and Bootlid) with fibreglass and or carbon fibre parts. I'm not sure if they have this but I would if I could replace the fenders with fibreglass and or carbon fibre as well. For the Windows, I'd possibly replace them with something like Perspex. The only thing I'd worry about for the Perspex is how likely am I to damage it and how much would it cost. I'd try and store all the original OEM parts in the event that said replacement parts get damaged or whatnot. They also make a carbon fibre door but I don't know how much that would cost nor how it'd impact safety. Would going with an aluminum door be possible? And would it add a significant amount to weight savings?


How much does the Hood, Trunk and windows (including rear) weigh individually?

Just read about Lexan, maybe this would be a better alternative to the perspex? One reason I'd want to use the lexan is because it'd be stronger than the glass, making breaking and entering into my vehicle more difficult, not to mention safer for me. I also don't care too much about tint.